CORSAIR 4000D RS Frame Modular High Airflow Mid-Tower PC Case – 3X RS Fans – InfiniRail Mounting System – Fits Multiple 360mm Radiators – Reverse Connector Motherboard Compatible – Black
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AI Verdict
This is a modular ATX mid-tower with InfiniRail fan mounting and dual 360mm radiator support, built for builders prioritizing customization and reverse connector motherboards.
This case is a strong fit for builders who value modularity and extensive cooling options, especially with its support for dual 360mm radiators and the InfiniRail system. Its compatibility with reverse connector motherboards also caters to a specific, growing segment of the PC building community.
If you don't need the advanced modularity or reverse connector motherboard support, look for a case with a simpler internal layout and more conventional front I/O placement.
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Pros
- The FRAME Modular Case System allows for extensive customization, including swapping motherboard trays and front I/O panels.
- InfiniRail Fan Mounting System provides unmatched flexibility for fan placement, supporting fans up to 200mm in the front and 140mm in the roof.
- It supports dual 360mm radiators in the front, roof, and side for extensive liquid cooling configurations.
- Includes three CORSAIR RS PWM fans with daisy-chainable 4-pin connections and Zero RPM mode for quiet operation at low loads.
- Designed for compatibility with reverse connector motherboards like ASUS BTF and MSI PROJECT ZERO, simplifying cable management.
- The internal side panel can be used as a cable cover or removed to mount additional fans for increased cooling potential.
- Features a 3D Y-Pattern Airflow Panel optimized for high airflow and minimal restriction.
Cons
- The front I/O ports (USB 3.2 Gen2 Type-C, 2x USB 3.2 Gen1 Type-A, audio jack) are located on the bottom of the front panel, which is inconvenient for floor placement.
- The steel panels are described as somewhat flimsy by some users.
- No rear exhaust fan is included, meaning you'll need to purchase one separately for balanced airflow.
- Adjusting the InfiniRail system for front fans can be a chore, requiring removal of the face panel and potentially the front feet.
- Storage options are limited to two 3.5-inch and four 2.5-inch bays, which might not be enough for users with extensive traditional storage needs.
- A PCIe riser cable is not included for vertical GPU mounting, despite a bracket being provided.
Dimension Scores
The 3D Y-Pattern Airflow Panel, three included RS fans, and support for dual 360mm radiators provide substantial cooling potential.
The included CORSAIR RS PWM fans feature Zero RPM mode for near-silent operation at low loads.
It features tempered glass, but some users report the steel panels feel somewhat flimsy.
The internal side panel can act as a cable cover, and compatibility with reverse connector motherboards significantly aids in clean cable routing.
Best For
- Builders prioritizing extensive liquid cooling setups with multiple 360mm radiators.
- Users with reverse connector motherboards seeking a clean, cable-free aesthetic.
- Enthusiasts who want to customize their case layout and components over time.
- PC builders who frequently experiment with fan configurations for targeted airflow.
Not Recommended For
- Users who place their PC on the floor and need easy access to front I/O ports.
- Builders requiring numerous 3.5-inch drive bays for traditional HDD storage.
- Those expecting a quick, tool-less fan installation experience with the InfiniRail system.
Watch Out For
- The front I/O ports are positioned on the bottom of the front panel, making them awkward to access if your PC sits on the floor.
- Adjusting the front InfiniRail system for different fan sizes involves unscrewing the face panel, which is attached to the bottom and requires detaching the front feet.
- The case only includes three 120mm fans in the front and no rear exhaust fan, so you'll likely need to buy additional fans for optimal cooling.
- Storage is capped at two 3.5-inch and four 2.5-inch drives, which is restrictive if you have a large HDD collection.
- While a vertical GPU bracket is included, you'll have to purchase a separate PCIe riser cable to use it.
Full Specifications
| ASIN | B0DPJ9K8WK |
| Brand | Corsair |
| Color | Black |
| Series | FRAME 4000D RS |
| Material | Tempered Glass |
| Case Type | Mid Tower |
| Model Name | FRAME 4000D RS |
| Item Weight | 18.04 pounds |
| Manufacturer | Corsair |
| Cooling Method | Air |
| Item model number | CC-9011312-WW |
| Product Dimensions | 19.17 x 9.41 x 19.13 inches |
| Item Dimensions LxWxH | 19.17 x 9.41 x 19.13 inches |
| Number of USB 3.0 Ports | 2 |
| Motherboard Compatability | ATX |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Gaming |
What Buyers Say
The most surprising thing about this case is how much Corsair leaned into true modularity, letting you swap out major components like the motherboard tray, which is a huge step beyond just removable panels. Builders are really digging the InfiniRail system for fan placement, saying it gives them freedom they haven't had before. However, that bottom-mounted front I/O is a recurring pain point for anyone not putting their PC on a desk. Also, don't expect a full suite of fans out of the box beyond the three front ones.
“Dude, this case is actually sick for custom loops, but seriously, who puts the USB ports on the bottom? My back already hurts.”
Common Praise
- The InfiniRail system offers unmatched flexibility in fan and radiator mounting, allowing for precise airflow targeting.
- Supports multiple 360mm radiators, making it a strong contender for custom liquid cooling loops.
- Compatibility with reverse connector motherboards simplifies cable management and creates a cleaner interior aesthetic.
- The 3D Y-Pattern front panel significantly improves airflow compared to previous models.
- Ease of building is enhanced by tool-free panels, captive PSU thumbscrews, and ample cable routing options.
- The FRAME Modular Case System provides genuine long-term customization and upgrade potential.
Common Complaints
- The front I/O ports are located on the bottom of the front panel, which is inconvenient if the PC is on the floor.
- Some users perceive the steel panels as somewhat flimsy, impacting the overall feel.
- It does not include a rear exhaust fan, requiring an additional purchase for balanced airflow.
- Adjusting the InfiniRail system for front fans can be a fiddly process, involving multiple screws and panel removal.
- The limited number of 3.5-inch drive bays (two) is a drawback for users with many traditional hard drives.
- No native dust filters are present for the side panel fan mounts.
Ownership Tips
- The modularity isn't just marketing fluff; you can genuinely upgrade and change parts of this case over time, which is pretty wild.
- While the InfiniRail system is super flexible, don't expect to quickly swap fan positions without a bit of effort and unscrewing.
- That bottom front I/O is a real make-or-break, depending on if your rig lives on your desk or the floor. Plan accordingly.
- The three included fans are fine to start, but you'll probably want to add more, especially a rear exhaust, for optimal cooling.
- This case is noticeably larger than the original 4000D, giving you way more room to work with, especially for big GPUs and radiators.
Frequently Asked Questions
Does the CORSAIR 4000D RS come with fans?
Yes, it includes three CORSAIR RS PWM fans pre-installed in the front of the case.
Can I install a 360mm radiator in this case?
Absolutely, the case supports dual 360mm radiators, with mounting locations in the front, roof, and side.
Where are the USB ports and audio jack located on the front panel?
The front I/O ports, including USB 3.2 Gen2 Type-C, two USB 3.2 Gen1 Type-A, and the audio jack, are located on the bottom of the front panel.
Is this case compatible with reverse connector motherboards?
Yes, it is specifically designed to be compatible with reverse connector motherboards such as ASUS BTF, MSI PROJECT ZERO, and GIGABYTE PROJECT STEALTH.
Does it include a vertical GPU mount?
A bracket for vertical GPU mounting is included, but you will need to purchase a separate PCIe riser cable to utilize this feature.
How many storage drives can I install?
The case provides space for up to two 3.5-inch hard drives and four 2.5-inch solid-state drives.
Buying Guide
When picking a PC case, you're essentially choosing the home for all your expensive components, so airflow and compatibility are key. Think about how much cooling you need – air or liquid – and how many fans or radiators you plan to install. Also, consider how easy it will be to build in and manage all those cables, especially if you're going for a clean look.
FRAME Modular Case System
InfiniRail Fan Mounting System
Reverse Connector Motherboard Compatible
Alternatives
If this case's modularity or reverse connector support isn't a priority, look for cases with more traditional front I/O placement and a higher number of dedicated 3.5-inch drive bays.
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